 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.standalone;
 import java.io.*;
 import java.net.*;

 import org.eclipse.core.runtime.*;
 import org.eclipse.update.configuration.*;
 import org.eclipse.update.core.*;
 import org.eclipse.update.internal.core.*;


 /**
  * Command to list all installed features.
  * <p>
  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  * </p>
  * @since 3.0
  */
 public class ListFeaturesCommand extends ScriptedCommand {
     private IConfiguredSite[] sites = getConfiguration().getConfiguredSites();
     
     /**
      * @param fromSite if specified, list only the features from the specified local install site
      */
     public ListFeaturesCommand(String fromSite) throws Exception {
         try {
             if (fromSite != null) {
                 File sitePath = new File(fromSite);
                 if (!sitePath.exists())
                     throw new Exception (Messages.Standalone_noSite + fromSite);
                     
                 URL fromSiteURL = sitePath.toURL();
                 ISite site = SiteManager.getSite(fromSiteURL, null);
                 if (site == null) {
                     throw new Exception (Messages.Standalone_noSite + fromSite);
                 }
                 IConfiguredSite csite = site.getCurrentConfiguredSite();
                 if (csite == null)
                     throw new Exception (Messages.Standalone_noConfiguredSite + fromSite);
                 sites = new IConfiguredSite[] { csite };
             }
         
         } catch (Exception e) {
             throw e;
         }
     }

     /**
      */
     public boolean run(IProgressMonitor monitor) {
         try {
             if (sites != null) {
                 for (int i = 0; i < sites.length; i++) {
                     System.out.println("Site: " + sites[i].getSite().getURL()); //$NON-NLS-1$
 IFeatureReference[] features = sites[i]
                             .getFeatureReferences();
                     for (int f = 0; f < features.length; f++) {
                         boolean configured = sites[i].isConfigured(features[f]
                                 .getFeature(null));
                         System.out.println(" Feature: " //$NON-NLS-1$
 + features[f].getVersionedIdentifier()
                                         .getIdentifier()
                                 + " " //$NON-NLS-1$
 + features[f].getVersionedIdentifier()
                                         .getVersion() + " " //$NON-NLS-1$
 + (configured ? "enabled" : "disabled")); //$NON-NLS-1$ //$NON-NLS-2$
 }
                 }
             }
             return true;
         } catch (CoreException e) {
             StandaloneUpdateApplication.exceptionLogged();
             UpdateCore.log(e);
             return false;
         }
     }
 }

